package dao;

import java.sql.Timestamp;
import java.util.List;

import org.hibernate.LockOptions;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.transaction.annotation.Transactional;

import bean.WechatCache;

/**
 * A data access object (DAO) providing persistence and search support for
 * WechatCache entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see bean.WechatCache
 * @author MyEclipse Persistence Tools
 */
@Transactional
public class WechatCacheDAO {
    protected static final Logger log = LoggerFactory
            .getLogger(WechatCacheDAO.class);
    // property constants
    public static final String ACCESS_TOKEN = "accessToken";
    public static final String JSAPI_TICKET = "jsapiTicket";
    public static final String API_TICKET = "apiTicket";

    protected SessionFactory sessionFactory;

    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    protected Session getCurrentSession() {
        return sessionFactory.getCurrentSession();
    }

    protected void initDao() {
        // do nothing
    }

    public void save(WechatCache transientInstance) {
        log.debug("saving WechatCache instance");
        try {
            getCurrentSession().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }

    public void delete(WechatCache persistentInstance) {
        log.debug("deleting WechatCache instance");
        try {
            getCurrentSession().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }

    public WechatCache findById(java.lang.Integer id) {
        log.debug("getting WechatCache instance with id: " + id);
        try {
            WechatCache instance = (WechatCache) getCurrentSession().get(
                    "bean.WechatCache", id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }

    public List findByExample(WechatCache instance) {
        log.debug("finding WechatCache instance by example");
        try {
            List results = getCurrentSession()
                    .createCriteria("bean.WechatCache")
                    .add(Example.create(instance)).list();
            log.debug("find by example successful, result size: "
                    + results.size());
            return results;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    }

    public List findByProperty(String propertyName, Object value) {
        log.debug("finding WechatCache instance with property: " + propertyName
                + ", value: " + value);
        try {
            String queryString = "from WechatCache as model where model."
                    + propertyName + "= ?";
            Query queryObject = getCurrentSession().createQuery(queryString);
            queryObject.setParameter(0, value);
            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find by property name failed", re);
            throw re;
        }
    }

    public List findByAccessToken(Object accessToken) {
        return findByProperty(ACCESS_TOKEN, accessToken);
    }

    public List findByJsapiTicket(Object jsapiTicket) {
        return findByProperty(JSAPI_TICKET, jsapiTicket);
    }

    public List findByApiTicket(Object apiTicket) {
        return findByProperty(API_TICKET, apiTicket);
    }

    public List findAll() {
        log.debug("finding all WechatCache instances");
        try {
            String queryString = "from WechatCache";
            Query queryObject = getCurrentSession().createQuery(queryString);
            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find all failed", re);
            throw re;
        }
    }

    public WechatCache merge(WechatCache detachedInstance) {
        log.debug("merging WechatCache instance");
        try {
            WechatCache result = (WechatCache) getCurrentSession().merge(
                    detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

    public void attachDirty(WechatCache instance) {
        log.debug("attaching dirty WechatCache instance");
        try {
            getCurrentSession().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }

    public void attachClean(WechatCache instance) {
        log.debug("attaching clean WechatCache instance");
        try {
            getCurrentSession().buildLockRequest(LockOptions.NONE).lock(
                    instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }

    public static WechatCacheDAO getFromApplicationContext(
            ApplicationContext ctx) {
        return (WechatCacheDAO) ctx.getBean("WechatCacheDAO");
    }
}